Small toom43 cleanup

Torbjorn Granlund tg at
Tue Oct 20 19:21:07 CEST 2009

nisse at (Niels Möller) writes:

  I've adapted toom32_mul to use a proper itch/scratch interface. I also
  simplified the allocation by requiring that s + t >= 5, so that 5
  temporary values of n+1 limbs each fit in the product area. That
  should be true except for very small inputs (I think an >= 25 or bn >=
  19 is sufficient).
  Marco, Torbjörn, does this look ok?
It is OK with me.  


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